Renesas R61509V - Manual (Page 48)

R61509V Target Spec
Rev. 0.11 April 25, 2008, page 48 of 181
Display Control 3 (R009h)
PTS: Sets the source output level to drive non-display area. PTS also selects operation of grayscale
amplifier and step-up clock frequency.
Table 15
Source output in non-lit display area (Note)
Non-lit display area
Step-up clock frequency PTS
Positive polarity Negative polarity
Grayscale amplifier
in operation
0 V63 V0 V0 to V63 Register setting (DC0, DC1)
1 V63 V0 V0, V63 Register setting (DC0) x 1/2
Note: The power efficiency improved by halting grayscale amplifiers and slowing down the step-up clock
frequency can be obtained in non-display drive period.
PTV: Sets the VCOM output in non-lit display area. When PTV=1, frame inversion in non-lit display area
is selected.
Table 16
PTV VCOM operation in non-lit display drive period
0 BC setting
1 Frame inversion
R/W RS IB15 IB14 IB13 IB12 IB11 IB10 IB9 IB8 IB7 IB6 IB5 IB4 IB3 IB2 IB1 IB0
R/W 1 0 0 0 0 PTV PTS 0 0 0 0 0 0 0 0 0 0
Default 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1